Maguire Products WEIGH SCALE BLENDER WSBMB Series, Installation Operation & Maintenance

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M A G U I R E P R O D U C T S , I N C .
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W E I G H S C A L E B L E N D E R
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jogs will occur. The last two digits (xxx30) indicate the frequency (or interval) in seconds.
The default setting of (03030) produces a jog every 1/2 minute for up to 30 jogs. You
may lengthen or shorten these numbers as required. A setting of (29999) produces a jog
time of over 8 hours at 99 second intervals. Setting the first three digits to 000 causes the
controller to jog forever (no timeout).
FCV
Delays opening and closing of the flow control valve
FCV controls three different items:
1) Digit 1 can reverse the output logic of the computer.
2) Digits 2 and 3 set the time delay before closing.
3) Digits 4 and 5 set the time delay before opening.
The most important and primary use of FCV is to set the TIME, in seconds, that the flow
control valve delays before opening (4th and 5
th
digits (FCV 000xx). If your unit is
equipped with a Flow Control Valve, under the mix chamber, it is programmed to open
whenever the sensor is covered. It will close again immediately when the sensor is
uncovered. This assures that material has time to mix before dropping into a bin below.
When a batch is dropped into the mix chamber the sensor is covered. To prevent unmixed
material from dropping immediately out the bottom, the mix valve is delayed for a time to
allow mixing to occur first. This parameter controls the time that the Mix Chamber Valve
remains closed after a batch has been dropped.
The primary function of the valve is to assure mixing. As such it seems best to keep as
high a level as possible in the mix chamber. However, if the chamber gets too full (over the
blades), mixing is not as good. To allow the chamber to empty to a lower level after the
sensor is uncovered, we can also DELAY the CLOSING of the flow control valve. This is
done by using the 2nd and 3rd digits (FCV 0xx00) to specify a delay time. (FCV 00206)
delays closing by 2 seconds.
If the first digit is set to a 1 (FCV 10006), the signal output to the air solenoid is reversed.
Normally, the computer puts out a voltage to open the valve. With this flag set the
computer puts out a voltage to close the valve. For this reverse logic to work correctly, you
must reverse the air lines to the flow control valve air cylinder.
Normal power-off position for the valve is closed. Some customers prefer the valve open
when all power is off. This option allows this reversed "power off" position. With power on,
no difference is apparent.
FCA
FLOW CONTROL ALARM
FCA parameter is for enabling or disabling the Flow Control Alarm. Entering a 1 in the first
digit enables alarm. If enabled, uncovering of the sensor triggers the Flow Control to close
for the next batch. If the Sensor is not covered in 2 cycles, the FCV timing is started (last
digit of parameter FCA10002), the alarm is sounded and the process stopped. Pressing
the silence alarm button once will silence the alarm. Pressing it a second time will reset the
alarm. Default is FCA disabled - FCA00002
DTI
Probably no need to ever change this
DTI is the maximum TIME allowed for the weighing bin to dump at the end of the cycle.
The software will close the bin earlier if it detects no weight change occurring. This time
determines the maximum time that is allowed for the bin to empty. We set this maximum
time limit according to the model and batch size.